Commit Graph

3 Commits

Author SHA1 Message Date
Joost Jager
1e0ed1e52f
multi: fix dropped errors 2019-09-13 09:50:38 +02:00
Olaoluwa Osuntokun
7cbf0326c7
chanbackup: extend channel backups to include entire local+remote chan config
In this commit, we extend the prior Single format to include the entire
channel config, other than the constraints, but including the CSV delay
for both sides. We do this as we'll need more of the keying information
in order to properly execute the DLP protocol. Additionally, in the
future, if warranted, this would allow channels to be resumed if deemed
safe.
2019-03-28 17:53:38 -07:00
Olaoluwa Osuntokun
ee71e16593
chanbackup: add implementation of Single Channel Backups (SCBs)
In this commit, we add the initial implementation of the SCB structure.
Given an SCB, and a user's seed, it will be possible to recover the
settled balanced of a channel in the event of total or partial data
loss. The SCB contains all information required to initiate the data
loss protection protocol once we restore the channel and connect to the
remote channel peer.

The primary way outside callers will interact with this package are via
the Pack and Unpack methods. Packing means writing a
serialized+encrypted version of the SCB to an io.Writer. Unpacking does
the opposite.

The encoding format itself uses the same encoding as we do on the wire
within Lightning. Each encoded backup begins with a version so we can
easily add or modify the serialization format in the future, if new
channel types appear, or we need to add/remove fields.
2019-01-23 18:11:26 -08:00